6807421005 has 32 divisors (see below), whose sum is σ = 13579481088. Its totient is φ = 2829057600.

The previous prime is 6807420989. The next prime is 6807421009. The reversal of 6807421005 is 5001247086.

6807421005 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 6807421005 - 2⁴ = 6807420989 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6807421009) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2945781 + ... + 2948090.

It is an arithmetic number, because the mean of its divisors is an integer number (424358784).

Almost surely, 2^6807421005 is an apocalyptic number.

It is an amenable number.

6807421005 is a deficient number, since it is larger than the sum of its proper divisors (6772060083).

6807421005 is a wasteful number, since it uses less digits than its factorization.

6807421005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5893897.

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 6807421005 is about 82507.0966947692. The cubic root of 6807421005 is about 1895.2254083574.

The spelling of 6807421005 in words is "six billion, eight hundred seven million, four hundred twenty-one thousand, five".